<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
	</body>
</html>
<script type="text/javascript">
	const arr1 =[1,2,3];
	const arr2 = [4,5,6,7,8,9];
	
	const arr3 = [...arr1,...arr2];
	console.log(arr3);
	const arr4 = [...arr1,'a','b','c']
	console.log(arr4);
</script>